ISSN: 0973-7510

E-ISSN: 2581-690X

Jyoti Singh, Shivesh Sharma , Seema Nara and Shikha Devi
1Department of Biotechnology Motilal Nehru National Institute of Technology, Allahabad – 211 004, India.
J Pure Appl Microbiol. 2013;7(2):1409-1415
© The Author(s). 2013
Received: 09/10/2012 | Accepted: 13/11/2012 | Published: 30/06/2013
Abstract

Water is an important asset for every developing country especially the river water which is the prime source for drinking water. The Ganges, largest river of Indian subcontinent is being severely polluted by mass bathing, sewage treatment plants, factory effluents and various other human activities. In the present study, a long stretch of Ganges from Devprayag to Allahabad is selected to ascertain the bacteriological quality of water. The parameters viz., standard plate count, total coliforms, fecal coliforms and FC: FS ratio has been investigated to detect the changes in water quality due to presence of microorganism. The results obtained have been compared with the Bureau of Indian standards. The Most probable number (MPN) values from all the places were found to be higher. A comparatively higher FC: FS ratio was observed in stretches having high population density as compared to stretches where the population density is substantially lower. Various physicochemical parameters viz., dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), and total dissolved solids (TDS) were also examined. Except DO and BOD values, all other parameters were found to be higher than the permissible limits. The percentage of Gram negative bacteria (62.8%) was found to be very high during the course of investigation. The morphological and biochemical tests highlighted the presence of E. coli in the maximum number from all the locations.

Keywords

Pollution, Total Coliform (TC), Fecal Coliform (FC), Fecal Streptococci (FS)

Article Metrics

Article View: 856

Share This Article

© The Author(s) 2014. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.